We Will Be Like the Angels
Jesus said that after we enter into the kingdom, we’ll be like the angels of God; but He did not say we will become angels of God. Angels have been around a lot longer than humans (Job 38:4-7).
When Jesus was asked about irreconcilable differences for a woman who had married seven different brothers because of their subsequent deaths, they were trying to test Jesus and asked Him, “Whose wife will she be? For the seven had her as wife” (Mark 12:23). We should note that the Sadducees didn’t believe in miracles, angels, or even the afterlife; so they wanted to trap Jesus into answering an irrelevant question. They wanted to know which brother she would be the wife of (Mark 12:18-23). Jesus corrected them by saying, “For when they rise from the dead, they neither marry nor are given in marriage, but are like angels in heaven” (Mark 12:25). We will be like the angels in the sense that we can’t marry or bear children anymore. Obviously, angels can’t have sex anyway because they were created by God and they are eternal; therefore, they have no need to have children.
What believers will experience after death, or at Jesus’ return, is that they will have both a physical and spiritual body. Both will be completely incorrupt (1 Corinthians 15), meaning it’s the end of death (Revelation 21:4). We will neither marry nor be given in marriage, but this doesn’t mean we become angels at Jesus’ return or after death. We are never told we will be angels, only that we will be like them in the sense of no marriage or children (and, obviously, no more sex).
We will have eternal life in a body that cannot die, become diseased, or even be injured, just like the angels. We will be like the angels but not angels; and since angels cannot be killed because they are spirit beings, neither will we face the threat of death anymore. Those things have all passed away by then (Revelation 21:4), so being like something is not the same thing as being that something. Paul asks the Corinthians, “Do you not know that we are to judge angels” (1 Corinthians 6:3a), showing that we are not going to become angels but will be like them by having a spirit body and eternal life.